A device for trimming hair includes a fixed cutting element, a mobile cutting element and a fixed guard, each including a plurality of teeth that extends in a similar direction. The mobile cutting element is moveable relative to the fixed cutting element such that hairs are cut when they enter a space between the teeth. The mobile cutting element is positioned between the fixed cutting element and the fixed guard, and when in use, the fixed guard is the component closest to the skin to be shaved in a certain direction. A length of the teeth of the fixed and mobile cutting elements and the fixed guard differ so that, during use, the fixed cutting element and the fixed guard may contact the skin but the mobile cutting element is restricted from fully contacting the skin to prevent damage or irritation of the skin.